You may not notice it, but sea urchins have very thin tube-like suction cup feet, just like their close relative the sea stars. These feet are useful to grasp onto pieces of seashells, pebbles, or seaweed to disguise the sea urchin from other nearby predators. Click on this post to see what eats a sea urchin.
: If one is not getting enough calories from a vegan diet, there are a few ways to remedy that. For example, one can snacks that are between 100 to 200 calories. How Do Vegans Get Protein? : But where do you get your protein? but wheat, oatmeal, or potatoes, we would easily take in more than enough protein.
The truth lies somewhere in the middle. It is easy to get enough protein on a vegan diet if you eat multiple servings of high-lysine foods (legumes, seitan, amaranth, quinoa, pistachios, and pumpkin seeds) each day. But there are many vegans who are probably not eating enough high-lysine foods.